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Table 3 Degree of PLD estimated by gonioscopy as percentage of total ICA circumference affected and equivalent ordinal grade as published by Pearl et al. [21]

From: Prevalence of pectinate ligament dysplasia and associations with age, sex and intraocular pressure in the Basset hound, Flatcoated retriever and Dandie Dinmont terrier

Percentage of ICA affected Definition Ordinal grade
0 % Unaffected 0
<20 % Mildly affected 1
20–90 % Moderately affected 2
>90 % Severely affected 3